USGS Professonal Paper 1096 - IRIS

ILLINOIS
Garland, IX
GENERAL INFORMATION
Operated by:
Address:
Teledyne Geotech
Teledyne Geotech
340] Shiloh Road
Garland, TX 75041
Telephone: 214-271-2561
Telex: 73-2394
Address to obtain records;
SIlE INFORml:IION
I eledyne Geoteth
Seismic Data Analysis Center
314 Montgomery Street
Alexandria, VA 22314
Code
Station name
Latitude Longitude Elev Date Date
'd@g N ) 'deg 1;1 ) (.,,'" ) opened closed
Foundation; geologic ago
(PW-JL) Pontiac----------------- 40.9161 88.5853 210 6/29/66 6/30/66 ---
(WQ- IL) Watseka----------------- 40.8656 87.5864 198 8/23/69 10/10/69 ---
5/07/73 5/22/73
INSTRUMENTATION
Seismometer Galvo Type Magnification
Code TYI~e ComQonent T (sec) T (sec) recording ot T
0 a
•
-
Remarks
(PW-IL) Geotech 5-13---- Z,NS,EW ].0 --- Magnetic tape --- Portable system.
(WQ- II) Geotech S-13---- Z NS EW ].0 --- ---do-------- --- Do.
Geotech--------- Z,NS,EW 20.0 --- ---do-------- --- Do.
Timing system: Geotech crystal clock checked wi th WWV (50-mSf>c tolerance).
System response curves: See figure 3, p. 364.
SHORT HISTORY
Tho LRSM program began in 1960 part of tho VELA-Uniform project. It continued unti 1 1971 , Io.'hen it .., replaced by tho
Special Data Collection Sys tern program " which remains active. Work under Lhese programs has been directed towards advancing tho
seismic-detection, identification, and location technigues necessary to detect and identify underground nuclear explosions.
All Io.'ork i, accomplished under lho technical direction of AFTAC, Vela Seismic Center, in Alexandria, Va.
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